/**
 * @file hello.cpp
 * @brief 
 * @author htli (22235058@zju.edu.cn)
 * @version 1.0
 * @date 2022-11-11
 * 
 * @copyright Copyright (c) 2022  linhuo2020
 * 
 */
#include <iostream>
int main(int argc, char const *argv[])
{
    /**
     * @brief Print Hello friendly.
     */
    std::cout<<"Hello World!"<<std::endl;
    return 0;
}
